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Let a node opt out of tx invs before we get a their bloom filter

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Note that the default value for fRelayTxes is false, meaning we
now no longer relay tx inv messages before receiving the remote
peer's version message.
This commit is contained in:
Matt Corallo 2012-08-20 21:10:25 -04:00
parent b02ddbedcb
commit 4c8fc1a588
3 changed files with 14 additions and 0 deletions
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6
src/main.cpp
View file

@ -2838,6 +2838,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
vRecv >> pfrom->strSubVer;
if (!vRecv.empty())
vRecv >> pfrom->nStartingHeight;
if (!vRecv.empty())
vRecv >> pfrom->fRelayTxes; // set to true after we get the first filter* message
else
pfrom->fRelayTxes = true;
if (pfrom->fInbound && addrMe.IsRoutable())
{
@ -3391,6 +3395,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
delete pfrom->pfilter;
pfrom->pfilter = new CBloomFilter(filter);
}
pfrom->fRelayTxes = true;
}
@ -3419,6 +3424,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
LOCK(pfrom->cs_filter);
delete pfrom->pfilter;
pfrom->pfilter = NULL;
pfrom->fRelayTxes = true;
}

2
src/net.cpp
View file

@ -2031,6 +2031,8 @@ void RelayTransaction(const CTransaction& tx, const uint256& hash, const CDataSt
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
{
if(!pnode->fRelayTxes)
continue;
LOCK(pnode->cs_filter);
if (pnode->pfilter)
{

6
src/net.h
View file

@ -152,6 +152,11 @@ public:
bool fNetworkNode;
bool fSuccessfullyConnected;
bool fDisconnect;
// We use fRelayTxes for two purposes -
// a) it allows us to not relay tx invs before receiving the peer's version message
// b) the peer may tell us in their version message that we should not relay tx invs
// until they have initialized their bloom filter.
bool fRelayTxes;
CSemaphoreGrant grantOutbound;
CCriticalSection cs_filter;
CBloomFilter* pfilter;
@ -211,6 +216,7 @@ public:
nStartingHeight = -1;
fGetAddr = false;
nMisbehavior = 0;
fRelayTxes = false;
setInventoryKnown.max_size(SendBufferSize() / 1000);
pfilter = NULL;